Manufacturing New Optics

Double Multilayer Monochromators on optics up to 1.5 m long. Substrates can be natural crystals such as Si<111> , which would then be one stripe of the monochromator.

1.1 m long with 1.0 m active area

Coatings can be uniform throughout or graded in depth or along the length or width or any combination of gradients.

Possible substrate materials: fused silica, quartz, Si, Ge, SiC, most low thermal expansion glasses such as Zerodur. Note that low thermal expansion may not be the best choice to avoid future trouble. Contact RIT for more details.

Substrates may be flat, cylindrical, spherical, aspherical, toroidal, elliptical or parabolic cylinders or any other practical shape.

Multilayers can be designed to provide bandpass ranging from 0.25% up to 10% or even more. Multilayers can be coated onto single-crystal substrates to take advantage of the very narrow bandpass, i.e., 0.1%, of the crystal while gaining the high flux from a broader bandpass multilayer. The result can be a multi-stripe optic with regions of 0.1%, 1.5%, 5% and 10% bandpass. Such a structure would yield a flexible beamline with a range of bandpass and intensity to suit many different applications.

Actual reflectivity

Predicted reflectivity

RIT also produces double-focusing optics with sufficient precision to achieve 1 micron to 10 micron focal spot sizes. For some applications, this small-spot focus provides excellent flux on moderate sample sizes. Optical precision can be 2 arcseconds or less.

RIT also produces high-precision Johansson Crystals from single crystal materials such as Ge or Si. RIT technology has been proven to provide intensity profiles across the beam that are of much greater uniformity than typical crystals available today.